Brake-beam.



H. zIEMss, JB. BRAKE BEAM.

APPLICATION FFFFFF om. 21,1906, 940,41 7. Patented Nov. 16, 1909.

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HENRY ZIEMSS, JR., 0F CHICAGO, ILLINOIS.

BRAKE-BEAM.

To all whom 'it may concern:

Be it known that I, HENRY ZInMss, J r., a citizen ot' the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Brake-Beams, of whichthe following is a specification.

One of the objects of this invention is to improve the construction ofthe brake-head supporting means in brake beams.

Another object is to provide improved means for adjustably securing thebrakehead to the beam. In the accompanying drawings, Figure 1 1s afragmental view of one end of a brake beam embodying the features of myinven tion, the brake head being illustrated in operative relation tothe beam. Fig. 2 vis a section substantially on dotted line 2 2 of Fig.1.

The beam which I have selected for the purpose of illustrating theinvention is formed from an I-beain and is indicated by the numeral 1 inthe drawings. A portion of one transverse web or head 2 of the beam ateach end of the beam isbent to lie within a sleeve 3. Said sleeve isslotted at 4 for the admission of the central web 5 of the beam. Theslot 4 does not extend entirely through the sleeve, but stops at thepoint indicated by 6 in Fig. 1. The beam 1 is notched at 7 to receivethe closed end of the slot 4. At the imier end o1c the sleeve 3 are twoears 8 adapted to lie at opposite sides of and in Contact with thecentral web 5 of the beam, a rivet 9 or equivalent means being passedthrough said ears and web to secure the sleeve to the beam. The brakehead 10, in this embodiment, has a hub 11 which is removably fitteduponthe sleeve 3. At the inner end of the brake head, a slot 12 isformed to receive the central web 5 of the beam when the head is beingplacedupon said beam. On the brake head and at opposite sides of saidslot are formed lugs 13 through which a bolt 14 extends. An opening 15is formed in the central web of the beam of sufcient size to permitl theears 13 and bolt 14 to pass through it when the head is being adjustedin position. The hub 11 is cut away at one side, as at 16, suitcientlyto permit of the desired degree of pivotal movement of the brake head.The cutaway portion 16 is in eEect a continuation of the slot 12. f

As shown in Fig. 1, the cut-away portion Specification of LettersPatent.

Application filed October 21, 1908.

Patented Nov. 16, 1909.

Serial No. 458,805.

' 16 does not extend through the outer end of the hub 11 in order not toweaken the brake-head unduly. The brake-head is fun ther strengthened bythe bolt 14. The pivotal movements of the brake-head upon the sleeve 3arer limited by the engagement of the edge walls 17 with the central web5 of the beam. The sleeve 3 has an annular flange 18 upon its inner endagainst which the brake-head is arranged to lie.

The means for locking the brake-head in position upon the sleevecomprises, in this instance, a block 19 corrugated upon its innersurface to engage corrugations 2O upon the periphery of the hub 11. Theblock 19 has a stem 21 which extends through an elongated opening 22 inthe hub 11 into a recess 23 in the sleeve 3. It will be seen that whenthe block 19 is in engagement with the corrugated surface 20 thebrakehead 10 is held against rotation upon the sleeve 3. The meansherein showrr for thus holding the block in engagement with thebrake-head will next be described.

A bolt 24 extends through an opening 25 in the block 19 and the stem 21,the head of said bolt preferably lying outside of the brake-head. Acoiled spring 26 presses at one end against av suitable portion of thesleeve 3, such as the web 27, and at its other end against a washer 28underneath the nut 29 of the bolt 24. The nut is held against rotationby means of lugs 30 on said washer. The washer in turn is held againstrotation by means of lugs 31 thereon which extend into slots 32 formedin the portions 33 of the sleeve 3. The bolt 24 may be held againstrotation in any suitable way, as, for example, by means of a lock washer34.

Assuming the bolt 24 and the block 19 to be removed from the beamstructure, the brake-head is placed upon the beam by slip ping said headover the sleeve 3. The bolt 14 is then passed through the lugs 13, theblock 19 placed in position with its stem in the recess 23, and the bolt24 passed through said block and engaged with its nut 29.

Then the parts are in the position shown in Fig. 2, the brake head isyieldingly or self-adjustably held against rotation upon the sleeve, theblock 19 yielding downwardly to permit the corrugated surface 20 to movepast it in either direction. If it be desired to lock the brake-headrigidly against movement upon the sleeve 3the bolt 24 is rotated untilthe lugs 31 on the washer 30 are drawn against the lower end Walls ofthe slots 32, thereby preventing movement of the locking block 19. T hestem 21 of said locking block serves to prevent displacement of thebrakehead longitudinally of the beam.

It is obvious that the means herein shown for adjustably securing thebrake-head to the beam may be employed in beams of variousconstructions, and that modifications of the construction hereillustrated will occur to those skilled in the art7 Wherefore I desirenot to be limited to the details of construction shown and described.

I claim as my invention:

1. A brake beam comprising a beam having a web, and a sleeve slotted toreceive said web and secured to said web.

2. A brake beam comprising a beam having a web, and tianges at one edgeot' said web, a sleeve slotted at one side to receive said web, saidiianges being curved to lie within said sleeve, and means for securingsaid sleeve to said web.

3. A brake beam comprising an I-beam, a portion of one head ot said beambeing bent, a sleeve having a slot extending through one side ot saidsleeve from one end ot said sleeve to a point near the other end otlsaid sleeve, said slot receiving the central web of the I-beam, the endof the latter being notched to receive the closed end of the slot, saidbent head lying within said sleeve, ears upon the inner end of saidsleeve in contact with opposite sides of said central web, and securingmeans extending through said ears.

4. A brake-head-supporting sleeve having a longitudinal beam-receivingslot therein extending from the inner end of said sleeve, the other endof said slot being closed, and an attaching ear at the inner end of saidsleeve at each side ot said slot.

5. A brake head having a hub, the peripheral wall of said hub having abeamreceiving opening therein, two opposite edge walls of which openingconstitute stops.

6. A brake head having a hub, said hub having a beam-receiving slottherein extending from one end of said hub and stopping short of theother end, and means joining the portions of the hub at opposite sidesof lailcj slot at the first mentioned end of said 7. A brake head havinga hub, said hub having a beam-receiving slot therein extending from oneend of said hub and stopping short of the other end, means joining theportions of the hub at opposite sides ot' said slot at the rst mentionedend of said hub, said slot having a widened portion, two opposite edgewalls of which widened portion constitute stops.

8. A brake head having a hub, said hub having a beam-receiving slottherein, ont end of said slot being closed, lugs at opposite sides ofsaid slot at the other end ot said slot, and removable means connectingsaid lugs.'

9. A brake beam, and a brake head mounted to turn on said beam andperipherally slotted to admit said beam, the walls of the slot limitingrelative movement between the beam and the head.

10. A brake beam, a brake head mounted to turn on said beam and slottedto admit the beam, and means for locking said brake head in adjustedposition on said beam.

11. A brake beam comprising a web, a brake head mounted to turn on saidbeam and slotted to admit said web, the side walls of the slotconstituting stops adapted to engage said web to limit the turningmovement of said head, and means for locking said head in adjustedposition on said beam.

12. A brake beam, a brake head having a hub by means ot' which said headis rotatably mounted on the beam, a locking block engaging the outerside of said hub for locking said brake head in adjusted position, and aspring carried by said beam for operating said locking block.

13. A brake beam structure, a brake head having a hub by means of whichsaid head is rotatably mounted on the beam, said hub being slotted, alocking block having a stem extending through said slot and entering arecess in said beam structure, means engaging said block and extendinginto the beam structure, and a spring in said beam structure operativelyconnected to said means for moving said block.

14. A brake beam structure, a brake head rotatably mounted on saidstructure, a block engaging said brake head, a bolt engaging said block,a nut on said bolt within said beam structure, a spring interposedbetween the fixed part ot said beam structure and said nut, and meansfor preventing said nut from turning.

15. A brake beam structure, a brake head rotatably mounted on saidstructure, a block engaging said brake head, a bolt engaging said block,a nut on said bolt within said beam structure, a spring interposedbetween the fixed part of said beam structure and said nut, a washer onsaid bolt engaging said nut, said washer having lugs thereon, andslotted portions in said beam structure receiving said lugs.

16. A brake beam comprising a member having a sleeve secured thereto; abrake head having a hub rotatably mounted on said sleeve, said hub beingslotted; a locking block engaging the outer side of said hub and havinga stem extending through said slot into a recess in said sleeve; a boltextending through said locking block into said sleeve; a nut on saidbolt within said sleeve; a washer on said bolt engaging said nut;

means to prevent said Washer from turning; engagement with said hub,said means beand a spring interposed between a fixed lng operable tohold said block unyieldlngly 10 portion of said sleeve and said Washer.in engagement With said hub.

17. A brake beam a brake head havin@ a T hub by means of which the headis rotabta- HEARY ZIEMSS JR' bly mounted on the beam, a locking blockWitnesses: engaging the outer side of said hub, and MATILDA M. DALEY,

means for yieldingly holding said block in GEORGE L. CHINDAHL.

